Craigslist murders: A timeline

Winter, 1995: Craig Newmark spreads the seeds of what would grow to become Craigslist by emailing his friends about events in the Bay Area.

From Craigslist's inception in 1995 to St. Olaf student Katherine Olson's death to the recent slayings that has the web site under fire, we take a look at the events that have led up to the Concert For Katherine memorial taking place this weekend in Minneapolis. Click here for the in-depth story.